Find the first five terms of the following sequence, starting with n=1. tn=(−1)n+1(n2−9)
Give your answer as a list, separated by commas. For example, if tn=n, you would give your answer as 1,2,3,4,5.

Please help me i will mark brainliest

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible